package com.aio.stylesmile.bio;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

public class BIOServer {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = null;
        Socket clientSocket = null;

        try {
            //创建服务端
            serverSocket = new ServerSocket(8888);
            System.out.println("服务端已启动，等待客户端连接...");

            while (true){
                // 监听客户端请求，接收不到请求会一直等待
                clientSocket = serverSocket.accept();
                int port = clientSocket.getPort();
                InetAddress inetAddress = clientSocket.getInetAddress();
                System.out.println("客户端 "+inetAddress+":"+port+" 连接成功！");
                //处理客户端消息
                new Thread(new ServerThread(clientSocket)).start();
            }
        } catch (IOException e) {
            System.out.println("客户端连接失败：" + e.getMessage());
        } finally {
            try {
                if (clientSocket != null) {
                    clientSocket.close();
                }
                if (serverSocket != null) {
                    serverSocket.close();
                }
            } catch (IOException e) {
                System.out.println("关闭资源失败：" + e.getMessage());
            }
        }
    }
}

/**
 * 服务端线程处理类
 */
class ServerThread  implements Runnable{

    private Socket clientSocket;

    public ServerThread(Socket clientSocket) {
        this.clientSocket = clientSocket;
    }

    @Override
    public void run() {
        //获取客户端输入流以便接收客户端数据
        try {
            BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            //获取客户端输出流以便向客户端发送数据
            PrintWriter out = new PrintWriter(clientSocket.getOutputStream());

            int port = clientSocket.getPort();
            InetAddress inetAddress = clientSocket.getInetAddress();
            String address = inetAddress+":"+port;

            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                //接收客户端消息
                System.out.println("客户端"+address+"发来消息：" + inputLine);
                //给客户端发送消息
                out.println("服务端已接收到消息并回复："+inputLine);
                out.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}